import java.util.Hashtable;

/**
 * @author gao
 * @date 2025/8/5 0:56
 */

public class Demo6 {
    public static void main(String[] args) {
        Hashtable<String, String> hashtable = new Hashtable<>();
        hashtable.put("111","aaa");
        hashtable.get("111");
    }
}